Home / 7,898.24-11,847.31-3,218.16

Finding the Fourth Proportional to 7,898.24, 11,847.31 and 3,218.16

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Solution

The fourth proportional to 7,898.24, 11,847.31 and 3,218.16 is: 4,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.24 : 11,847.31 = 3,218.16 : x
  2. Step 2: Convert to fraction form
    7,898.24/11,847.31 = 3,218.16/x
  3. Step 3: Cross multiply
    7,898.24x = 11,847.31 × 3,218.16
  4. Step 4: Simplify right side
    7,898.24x = 38,126,593.63
  5. Step 5: Solve for x
    x = 38,126,593.63/7,898.24
  6. Step 6: Final answer
    x = 4,827.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.